There is no reason why deductions cannot be super-charged:
To encourage greater charitable giving in Singapore as the economy recovered, the Minister for Finance announced in Budget 2011 that tax deduction of 2.5 times will be extended for another 5 years to donations made from 1 January 2011 to 31 December 2015.
What this means is that for every dollar that you donate to charities, the government will deduct $2.50 off your tax payable. If you have been paying Income Tax, you will know that this is something extremely beneficial.
A few years ago the deduction was only 2x and that in turn was a relatively new policy. Do any of you know of research on the impact of these policies and changes?